[Sane-analysis] Update on A1 fits

[O. A. Rondon]

I have posted an updated version of the fits to A1(W,Q^2), which includes:
- separate fits to A1(W) and A1(Q^2) in the DIS region, as a basis for
the global A1(W,Q^2) fits (slide 5)
- new forms of A1(Q^2) fits, based on comments by Hovhannes (1/Q^2),
Jonathan (1/log(Q^2)) and a test of 1/sqrt(Q^2), and new global fit
A1(W,Q^2) based on 1/sqrt(Q^2) (slide 7)

https://userweb.jlab.org/~rondon/analysis/asym/Q2/A1dis.pdf

The file displays correctly when opened with Acrobat Reader (any OS) or
in Chrome for Windows, but not in Ubuntu's Chrome on the SANE vnc
desktop (spaces between words are lost).

Cheers,

Oscar